To investigate the influence of object detectors to BCNet, besides using one-stage detector FCOS [1]}, we also use representative two-stage detector Faster R-CNN [2]} to perform experiments. As shown in Table REF , the performance gain brought by BCNet is consistent, with an improvement of 2.23 (for FCOS) and 2.04 (for Faster R-CNN) mask \(AP\)  on COCO-OCC respectively. Here, baseline denotes mask head design in Mask R-CNN.
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